[research, writing, and illustrations, Charlie Wing ; editor Benjamin W. Allen]
Meredith Corporation, 1997
Buku Referensi
Edwin Keister Jr., Marsha Jahns
Murdoch Book, 1996
Buku Teks SO
Edwin Keister Jr., Marsha Jahns
Murdoch Book, 1996
Buku Teks SO
Beale, Lucy
Alpha Books, 2004
Buku Teks SO
Keogh, James Edward
McGraw-Hill, 1977
Buku Teks SO